I ordered this mattress for our spare bedroom, and it arrived quickly and without issue.  It’s not super heavy to lift, one person can get it up on the bed frame to unroll. It expands slowly, and the instructions do say to let it expand unimpeded for 48 hours, so that’s what we did.  It’s on a platform bed with no foundation, and it feels good to lie down on.  It’s fairly firm but still somehow squishy at the same time. I like it.